/*
 * WPA Supplicant - PeerKey for Direct Link Setup (DLS)
 * Copyright (c) 2006-2015, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#ifndef PEERKEY_H
#define PEERKEY_H

#define PEERKEY_MAX_IE_LEN 80
struct wpa_peerkey {
	struct wpa_peerkey *next;
	int initiator;				/* whether this end was initator for SMK handshake */
	u8 addr[ETH_ALEN];			/* other end MAC address */
	u8 inonce[WPA_NONCE_LEN];	/* Initiator Nonce */
	u8 pnonce[WPA_NONCE_LEN];	/* Peer Nonce */
	u8 rsnie_i[PEERKEY_MAX_IE_LEN];	/* Initiator RSN IE */
	size_t rsnie_i_len;
	u8 rsnie_p[PEERKEY_MAX_IE_LEN];	/* Peer RSN IE */
	size_t rsnie_p_len;
	u8 smk[PMK_LEN];
	int smk_complete;
	u8 smkid[PMKID_LEN];
	u32 lifetime;
	int cipher;					/* Selected cipher (WPA_CIPHER_*) */
	u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
	int replay_counter_set;
	int akmp;

	struct wpa_ptk stk, tstk;
	int stk_set, tstk_set;
};

#ifdef CONFIG_PEERKEY

int peerkey_verify_eapol_key_mic(struct wpa_sm *sm, struct wpa_peerkey *peerkey, struct wpa_eapol_key_192 *key, u16 ver, const u8 *buf, size_t len);
void peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey, struct wpa_eapol_key *key, u16 key_info, u16 ver, const u8 *key_data, size_t key_data_len);
void peerkey_rx_eapol_smk(struct wpa_sm *sm, const u8 *src_addr, struct wpa_eapol_key *key, size_t extra_len, u16 key_info, u16 ver);
void peerkey_deinit(struct wpa_sm *sm);

#else							/* CONFIG_PEERKEY */

static inline int peerkey_verify_eapol_key_mic(struct wpa_sm *sm, struct wpa_peerkey *peerkey, struct wpa_eapol_key *key, u16 ver, const u8 *buf, size_t len)
{
	return -1;
}

static inline void peerkey_rx_eapol_4way(struct wpa_sm *sm, struct wpa_peerkey *peerkey, struct wpa_eapol_key *key, u16 key_info, u16 ver, const u8 *key_data, size_t key_data_len)
{
}

static inline void peerkey_rx_eapol_smk(struct wpa_sm *sm, const u8 *src_addr, struct wpa_eapol_key *key, size_t extra_len, u16 key_info, u16 ver)
{
}

static inline void peerkey_deinit(struct wpa_sm *sm)
{
}

#endif							/* CONFIG_PEERKEY */

#endif							/* PEERKEY_H */
